arch/arm/mach-at91/board-sam9263ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9263ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2007 Atmel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/mm.h>
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ads7846.h>
  29 #include <linux/i2c/at24.h>
  30 #include <linux/fb.h>
  31 #include <linux/gpio_keys.h>
  32 #include <linux/input.h>
  33 #include <linux/leds.h>
  34
  35 #include <video/atmel_lcdc.h>
  36
  37 #include <asm/setup.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/irq.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44
  45 #include <mach/hardware.h>
  46 #include <mach/board.h>
  47 #include <mach/gpio.h>
  48 #include <mach/at91sam9_smc.h>
  49 #include <mach/at91_shdwc.h>
  50 #include <mach/system_rev.h>
  51
  52 #include "sam9_smc.h"
  53 #include "generic.h"
  54
  55
  56 static void __init ek_init_early(void)
  57 {
  58         /* Initialize processor: 16.367 MHz crystal */
  59         at91sam9263_initialize(16367660);
  60
  61         /* DBGU on ttyS0. (Rx & Tx only) */
  62         at91_register_uart(0, 0, 0);
  63
  64         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  65         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  66
  67         /* set serial console to ttyS0 (ie, DBGU) */
  68         at91_set_serial_console(0);
  69 }
  70
  71 static void __init ek_init_irq(void)
  72 {
  73         at91sam9263_init_interrupts(NULL);
  74 }
  75
  76
  77 /*
  78  * USB Host port
  79  */
  80 static struct at91_usbh_data __initdata ek_usbh_data = {
  81         .ports          = 2,
  82         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  83 };
  84
  85 /*
  86  * USB Device port
  87  */
  88 static struct at91_udc_data __initdata ek_udc_data = {
  89         .vbus_pin       = AT91_PIN_PA25,
  90         .pullup_pin     = 0,            /* pull-up driven by UDC */
  91 };
  92
  93
  94 /*
  95  * ADS7846 Touchscreen
  96  */
  97 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  98 static int ads7843_pendown_state(void)
  99 {
 100         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
 101 }
 102
 103 static struct ads7846_platform_data ads_info = {
 104         .model                  = 7843,
 105         .x_min                  = 150,
 106         .x_max                  = 3830,
 107         .y_min                  = 190,
 108         .y_max                  = 3830,
 109         .vref_delay_usecs       = 100,
 110         .x_plate_ohms           = 450,
 111         .y_plate_ohms           = 250,
 112         .pressure_max           = 15000,
 113         .debounce_max           = 1,
 114         .debounce_rep           = 0,
 115         .debounce_tol           = (~0),
 116         .get_pendown_state      = ads7843_pendown_state,
 117 };
 118
 119 static void __init ek_add_device_ts(void)
 120 {
 121         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 122         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 123 }
 124 #else
 125 static void __init ek_add_device_ts(void) {}
 126 #endif
 127
 128 /*
 129  * SPI devices.
 130  */
 131 static struct spi_board_info ek_spi_devices[] = {
 132 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 133         {       /* DataFlash card */
 134                 .modalias       = "mtd_dataflash",
 135                 .chip_select    = 0,
 136                 .max_speed_hz   = 15 * 1000 * 1000,
 137                 .bus_num        = 0,
 138         },
 139 #endif
 140 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 141         {
 142                 .modalias       = "ads7846",
 143                 .chip_select    = 3,
 144                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 145                 .bus_num        = 0,
 146                 .platform_data  = &ads_info,
 147                 .irq            = AT91SAM9263_ID_IRQ1,
 148         },
 149 #endif
 150 };
 151
 152
 153 /*
 154  * MCI (SD/MMC)
 155  */
 156 static struct at91_mmc_data __initdata ek_mmc_data = {
 157         .wire4          = 1,
 158         .det_pin        = AT91_PIN_PE18,
 159         .wp_pin         = AT91_PIN_PE19,
 160 //      .vcc_pin        = ... not connected
 161 };
 162
 163
 164 /*
 165  * MACB Ethernet device
 166  */
 167 static struct at91_eth_data __initdata ek_macb_data = {
 168         .phy_irq_pin    = AT91_PIN_PE31,
 169         .is_rmii        = 1,
 170 };
 171
 172
 173 /*
 174  * NAND flash
 175  */
 176 static struct mtd_partition __initdata ek_nand_partition[] = {
 177         {
 178                 .name   = "Partition 1",
 179                 .offset = 0,
 180                 .size   = SZ_64M,
 181         },
 182         {
 183                 .name   = "Partition 2",
 184                 .offset = MTDPART_OFS_NXTBLK,
 185                 .size   = MTDPART_SIZ_FULL,
 186         },
 187 };
 188
 189 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 190 {
 191         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 192         return ek_nand_partition;
 193 }
 194
 195 static struct atmel_nand_data __initdata ek_nand_data = {
 196         .ale            = 21,
 197         .cle            = 22,
 198 //      .det_pin        = ... not connected
 199         .rdy_pin        = AT91_PIN_PA22,
 200         .enable_pin     = AT91_PIN_PD15,
 201         .partition_info = nand_partitions,
 202 };
 203
 204 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 205         .ncs_read_setup         = 0,
 206         .nrd_setup              = 1,
 207         .ncs_write_setup        = 0,
 208         .nwe_setup              = 1,
 209
 210         .ncs_read_pulse         = 3,
 211         .nrd_pulse              = 3,
 212         .ncs_write_pulse        = 3,
 213         .nwe_pulse              = 3,
 214
 215         .read_cycle             = 5,
 216         .write_cycle            = 5,
 217
 218         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 219         .tdf_cycles             = 2,
 220 };
 221
 222 static void __init ek_add_device_nand(void)
 223 {
 224         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 225         /* setup bus-width (8 or 16) */
 226         if (ek_nand_data.bus_width_16)
 227                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 228         else
 229                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 230
 231         /* configure chip-select 3 (NAND) */
 232         sam9_smc_configure(3, &ek_nand_smc_config);
 233
 234         at91_add_device_nand(&ek_nand_data);
 235 }
 236
 237
 238 /*
 239  * I2C devices
 240  */
 241 static struct at24_platform_data at24c512 = {
 242         .byte_len       = SZ_512K / 8,
 243         .page_size      = 128,
 244         .flags          = AT24_FLAG_ADDR16,
 245 };
 246
 247
 248 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 249         {
 250                 I2C_BOARD_INFO("24c512", 0x50),
 251                 .platform_data = &at24c512,
 252         },
 253         /* more devices can be added using expansion connectors */
 254 };
 255
 256 /*
 257  * LCD Controller
 258  */
 259 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 260 static struct fb_videomode at91_tft_vga_modes[] = {
 261         {
 262                 .name           = "TX09D50VM1CCA @ 60",
 263                 .refresh        = 60,
 264                 .xres           = 240,          .yres           = 320,
 265                 .pixclock       = KHZ2PICOS(4965),
 266
 267                 .left_margin    = 1,            .right_margin   = 33,
 268                 .upper_margin   = 1,            .lower_margin   = 0,
 269                 .hsync_len      = 5,            .vsync_len      = 1,
 270
 271                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 272                 .vmode          = FB_VMODE_NONINTERLACED,
 273         },
 274 };
 275
 276 static struct fb_monspecs at91fb_default_monspecs = {
 277         .manufacturer   = "HIT",
 278         .monitor        = "TX09D70VM1CCA",
 279
 280         .modedb         = at91_tft_vga_modes,
 281         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 282         .hfmin          = 15000,
 283         .hfmax          = 64000,
 284         .vfmin          = 50,
 285         .vfmax          = 150,
 286 };
 287
 288 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 289                                         | ATMEL_LCDC_DISTYPE_TFT \
 290                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 291
 292 static void at91_lcdc_power_control(int on)
 293 {
 294         at91_set_gpio_value(AT91_PIN_PA30, on);
 295 }
 296
 297 /* Driver datas */
 298 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 299         .lcdcon_is_backlight            = true,
 300         .default_bpp                    = 16,
 301         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 302         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 303         .default_monspecs               = &at91fb_default_monspecs,
 304         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 305         .guard_time                     = 1,
 306 };
 307
 308 #else
 309 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 310 #endif
 311
 312
 313 /*
 314  * GPIO Buttons
 315  */
 316 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 317 static struct gpio_keys_button ek_buttons[] = {
 318         {       /* BP1, "leftclic" */
 319                 .code           = BTN_LEFT,
 320                 .gpio           = AT91_PIN_PC5,
 321                 .active_low     = 1,
 322                 .desc           = "left_click",
 323                 .wakeup         = 1,
 324         },
 325         {       /* BP2, "rightclic" */
 326                 .code           = BTN_RIGHT,
 327                 .gpio           = AT91_PIN_PC4,
 328                 .active_low     = 1,
 329                 .desc           = "right_click",
 330                 .wakeup         = 1,
 331         }
 332 };
 333
 334 static struct gpio_keys_platform_data ek_button_data = {
 335         .buttons        = ek_buttons,
 336         .nbuttons       = ARRAY_SIZE(ek_buttons),
 337 };
 338
 339 static struct platform_device ek_button_device = {
 340         .name           = "gpio-keys",
 341         .id             = -1,
 342         .num_resources  = 0,
 343         .dev            = {
 344                 .platform_data  = &ek_button_data,
 345         }
 346 };
 347
 348 static void __init ek_add_device_buttons(void)
 349 {
 350         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 351         at91_set_deglitch(AT91_PIN_PC5, 1);
 352         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 353         at91_set_deglitch(AT91_PIN_PC4, 1);
 354
 355         platform_device_register(&ek_button_device);
 356 }
 357 #else
 358 static void __init ek_add_device_buttons(void) {}
 359 #endif
 360
 361
 362 /*
 363  * AC97
 364  * reset_pin is not connected: NRST
 365  */
 366 static struct ac97c_platform_data ek_ac97_data = {
 367 };
 368
 369
 370 /*
 371  * LEDs ... these could all be PWM-driven, for variable brightness
 372  */
 373 static struct gpio_led ek_leds[] = {
 374         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 375                 .name                   = "ds2",
 376                 .gpio                   = AT91_PIN_PC29,
 377                 .active_low             = 1,
 378                 .default_trigger        = "nand-disk",
 379         },
 380         {       /* "power" led, yellow (could be driven by pwm0) */
 381                 .name                   = "ds3",
 382                 .gpio                   = AT91_PIN_PB7,
 383                 .default_trigger        = "heartbeat",
 384         }
 385 };
 386
 387 /*
 388  * PWM Leds
 389  */
 390 static struct gpio_led ek_pwm_led[] = {
 391         /* For now only DS1 is PWM-driven (by pwm1) */
 392         {
 393                 .name                   = "ds1",
 394                 .gpio                   = 1,    /* is PWM channel number */
 395                 .active_low             = 1,
 396                 .default_trigger        = "none",
 397         }
 398 };
 399
 400 /*
 401  * CAN
 402  */
 403 static void sam9263ek_transceiver_switch(int on)
 404 {
 405         if (on) {
 406                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 407                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 408         } else {
 409                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 410                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 411         }
 412 }
 413
 414 static struct at91_can_data ek_can_data = {
 415         .transceiver_switch = sam9263ek_transceiver_switch,
 416 };
 417
 418 static void __init ek_board_init(void)
 419 {
 420         /* Serial */
 421         at91_add_device_serial();
 422         /* USB Host */
 423         at91_add_device_usbh(&ek_usbh_data);
 424         /* USB Device */
 425         at91_add_device_udc(&ek_udc_data);
 426         /* SPI */
 427         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 428         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 429         /* Touchscreen */
 430         ek_add_device_ts();
 431         /* MMC */
 432         at91_add_device_mmc(1, &ek_mmc_data);
 433         /* Ethernet */
 434         at91_add_device_eth(&ek_macb_data);
 435         /* NAND */
 436         ek_add_device_nand();
 437         /* I2C */
 438         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 439         /* LCD Controller */
 440         at91_add_device_lcdc(&ek_lcdc_data);
 441         /* Push Buttons */
 442         ek_add_device_buttons();
 443         /* AC97 */
 444         at91_add_device_ac97(&ek_ac97_data);
 445         /* LEDs */
 446         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 447         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 448         /* CAN */
 449         at91_add_device_can(&ek_can_data);
 450 }
 451
 452 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 453         /* Maintainer: Atmel */
 454         .timer          = &at91sam926x_timer,
 455         .map_io         = at91sam9263_map_io,
 456         .init_early     = ek_init_early,
 457         .init_irq       = ek_init_irq,
 458         .init_machine   = ek_board_init,
 459 MACHINE_END